@interface GroupActivities.BackgroundGroupSessionManager : _TtCs12_SwiftObject {
    void /* unknown type, empty encoding */ client;
    void /* unknown type, empty encoding */ presenceProviderObservers;
    void /* unknown type, empty encoding */ providerObservers;
    void /* unknown type, empty encoding */ $__lazy_storage_$_topicManager;
    void /* unknown type, empty encoding */ audioSessionAssertionManager;
    void /* unknown type, empty encoding */ _activitySessions;
    void /* unknown type, empty encoding */ _groupSessions;
    void /* unknown type, empty encoding */ $__lazy_storage_$_groupSessionTable;
}

@end